maemo.org - Talk - View Single Post - How to signal a QList<MyObject> ?

cjard	2010-03-12 , 11:26
Posts: 225 \| Thanked: 64 times \| Joined on Feb 2010	#1

I have a worker thread that generates a QList of MyObjects, and when it is done, it notifies that they are available to any interested listener:

Code:

signals:
    void objsAvailable(QList<MyObject> &objs);

I made a slot to be notified:

Code:

private slots:
    void processObjects(QList<MyObject> &objs);

and here's how I connect:

Code:

ObjMakerThread *thread = 
  new ObjMakerThread(blahParam, this);
connect(
  thread, 
  SIGNAL(objsAvailable(QList<MyObject>&)), 
  this, 
  SLOT(processObjs(QList<MyObject&>&))
);
thread->start();

Now, MyObject was not declared as a metatype, which is what I thought the folling error meant:

QObject::connect: Cannot queue arguments of type 'QList<MyObj>&'
(Make sure 'QList<Mail>&' is registered using qRegisterMetaType().)

So I added
Q_DECLARE_METATYPE()
to the myobject.h

and I called qRegisterMetaType<MyObject>("MyObject"); in main()

But still no dice.. Any clues?
Thanks guys

(note that I can pass a pointer to the QList around, but I was hoping not to)

Last edited by cjard; 2010-03-12 at 11:35.

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